Novel process and product

Abstract

Amino ester products, useful as additives to lubricating oils, may be prepared by reaction of an alpha-nitroketone and a tertiary aminoalcohol.

We claim: 
     
       1. The method which comprises reacting (i) a nitroketonized polymer bearing pendant alpha nitroketone groups with (ii) a tertiary amino alcohol thereby forming a polymer bearing pendant aminoester groups; and recovering said polymer bearing said pendant aminoester groups. 
     
     
       2. The method as claimed in claim 1 wherein said nitroketonized polymer has a carbon-carbon backbone chain. 
     
     
       3. The method as claimed in claim 1 wherein said nitroketonized polymer is a nitroketonized EPT terpolymer having a molecular weight M n  of 300-100,000. 
     
     
       4. The method of preparing an aminoester as claimed in claim 1 wherein said alpha-nitroketone is a nitroketonized EPT terpolymer of ethylene, propylene, and 1,4-hexadiene. 
     
     
       5. The method of preparing a polymer bearing pendant aminoester groups. ##EQU18## which comprises reacting a nitroketone ##EQU19## with a tertiary amino alcohol ##EQU20## wherein R is a polymer-derived moiety, R'" and R iv  are saturated hydrocarbon, R' is hydrogen or saturated hydrocarbon, and R" is divalent saturated hydrocarbon, thereby forming product aminoester; and recovering said aminoester. 
     
     
       6. The method as claimed in claim 5 wherein R'" and R iv  are C 1  -C 30  saturated alkyl. 
     
     
       7. The method as claimed in claim 5 wherein R'" and R iv  are C 1  -C 10  saturated alkyl. 
     
     
       8. The method as claimed in claim 5 wherein R" is ethylene -- CH 2  --CH 2  --. 
     
     
       9. The method as claimed in claim 5 wherein said tertiary amino alcohol is a dimethylamino alcohol. 
     
     
       10. The method as claimed in claim 5 wherein said tertiary amino alcohol is dimethylamino ethanol. 
     
     
       11. The method as claimed in claim 5 wherein said polymer is an EPT polymer. 
     
     
       12. The method of preparing an aminoester as claimed in claim 5 wherein said alpha-nitroketone is a nitroketonized EPT terpolymer having a molecular weight M n  of 300-100,000. 
     
     
       13. A new aminoester polymer ##EQU21## wherein R is a polymer moiety, R'" and R iv  are monovalent saturated hydrocarbon groups, and R is divalent saturated hydrocarbon, said polymer having been prepared by the method which comprises reacting (i) a nitroketonized polymer bearing pendent alpha nitroketone groups with (ii) a tertiary amino alcohol. 
     
     
       14. The product of claim 13 wherein R'"and R iv  are lower alkyl. 
     
     
       15. The product of claim 13 wherein R" is ethylene --CH 2  -- CH 2  --. 
     
     
       16. The product of claim 13 wherein R is an EPT derived hydrocarbon moiety. 
     
     
       17. A novel polymer having a carbon-carbon backbone chain and pendant therefrom a plurality of groups ##EQU22## wherein R'" and R iv  are saturated monovalent hydrocarbon, and R" is divalent hydrocarbon, said polymer having a molecular weight M n  of 300-100,000 and containing one of said groups per 300-100,000 molecular weight units in said polymer, said polymer having been prepared by the method which comprises reacting (i) a nitroketonized polymer bearing pendent alpha nitroketone groups with (ii) a tertiary amino alcohol.